@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:ital,wght@0,400..700;1,400..700&family=Sora:wght@100..800&display=swap');

:root {
  /* Aura Gold Brand Colors */
  --color-gold-bright: #F6CE73;
  --color-gold: #E9B44C;
  --color-gold-deep: #D9982E;
  --color-gold-gradient: linear-gradient(135deg, var(--color-gold-bright) 0%, var(--color-gold) 55%, var(--color-gold-deep) 100%);
  --color-gold-tint: rgba(233, 180, 76, 0.12);
  --color-on-gold: #1A1406;

  /* Ink Canvas Palette */
  --color-ink-bg: #0B0D12;
  --color-ink-screen: #10131A;
  --color-ink-surface: rgba(22, 26, 35, 0.7);
  --color-ink-raised: rgba(30, 35, 48, 0.85);
  --color-hairline: rgba(242, 239, 231, 0.10);

  /* Secondary Accents */
  --color-dusk: #7C7FE0;
  --color-dusk-tint: rgba(124, 127, 224, 0.14);
  
  /* Text */
  --color-bone: #F2EFE7;
  --color-bone-dim: rgba(242, 239, 231, 0.62);
  --color-bone-faint: rgba(242, 239, 231, 0.38);

  /* Status */
  --color-success: #3FAE7C;
  --color-warning: #E0644B;
  --color-danger: #E5484D;

  /* Typography Fonts */
  --font-display: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Instrument Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Borders and Spacing */
  --radius-card: 20px;
  --radius-button: 14px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--color-ink-bg);
  color: var(--color-bone);
  font-family: var(--font-body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background: linear-gradient(180deg, var(--color-ink-bg) 0%, var(--color-ink-screen) 60%, var(--color-ink-screen) 100%);
  line-height: 1.6;
}

/* Typography Scale */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

p {
  color: var(--color-bone-dim);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 100px 0;
  position: relative;
}

/* Layout Grids */
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.problem-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}

.showcase-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.mission-selectors {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.milestones-timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Glassmorphism Card Style */
.card {
  background: var(--color-ink-surface);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 32px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Navigation bar */
.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 13, 18, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-hairline);
  padding: 16px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-gold);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-link {
  color: var(--color-bone-dim);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--color-bone);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-button);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary {
  background: var(--color-gold-gradient);
  color: var(--color-on-gold);
  border: none;
  box-shadow: 0 4px 24px rgba(233, 180, 76, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(233, 180, 76, 0.35);
}

.btn-secondary {
  background: rgba(242, 239, 231, 0.05);
  color: var(--color-bone);
  border: 1px solid var(--color-hairline);
}

.btn-secondary:hover {
  background: rgba(242, 239, 231, 0.1);
  border-color: var(--color-bone-dim);
}

/* Premium App Store Badge Button */
.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #000000;
  color: #FFFFFF;
  border: 1px solid rgba(242, 239, 231, 0.15);
  border-radius: 14px;
  padding: 10px 24px;
  text-decoration: none;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  cursor: pointer;
}

.btn-appstore:hover {
  background: #0d0e12;
  border-color: var(--color-gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(233, 180, 76, 0.15), 0 4px 12px rgba(0, 0, 0, 0.4);
}

.btn-appstore:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 4px;
}

.btn-appstore-icon {
  width: 24px;
  height: 24px;
  color: #FFFFFF;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.btn-appstore:hover .btn-appstore-icon {
  transform: scale(1.08);
}

.btn-appstore-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.btn-appstore-subtitle {
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.8;
}

.btn-appstore-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.2px;
}

/* Accessibility Focus States */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
[role="button"]:focus-visible,
[role="tab"]:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 4px;
}

/* Horizon Bloom & Radial Backgrounds */
.horizon-bloom {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1000px;
  height: 300px;
  background: radial-gradient(circle at bottom, rgba(233, 180, 76, 0.15) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  section { padding: 60px 0; }
  .nav-links { display: none; }

  .hero-grid,
  .solution-grid,
  .showcase-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Accessibility & Decoupled States */
.mission-card.active {
  border-color: var(--color-gold);
  background: var(--color-gold-tint);
}
.faq-item.open {
  border-color: var(--color-gold);
}
.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}

/* Legal Layout and Structural Columns */
.legal-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
  margin-top: 40px;
}

.legal-sidebar {
  position: sticky;
  top: 120px;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  padding-right: 16px;
  border-right: 1px solid var(--color-hairline);
}

.legal-content {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.legal-section {
  scroll-margin-top: 120px;
}

.legal-section h2 {
  font-size: 2rem;
  color: var(--color-bone);
  margin-bottom: 16px;
  border-bottom: 1px solid var(--color-hairline);
  padding-bottom: 8px;
}

.legal-section p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-bone-dim);
  margin-bottom: 16px;
}

.legal-section ul, .legal-section ol {
  margin-left: 24px;
  margin-bottom: 16px;
  color: var(--color-bone-dim);
}

.legal-section li {
  margin-bottom: 8px;
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Table of Contents Links */
.toc-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
}

.toc-link {
  color: var(--color-bone-faint);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.25s ease;
  display: block;
  padding: 6px 0 6px 12px;
  border-left: 2px solid transparent;
}

.toc-link:hover, .toc-link:focus-visible {
  color: var(--color-bone);
}

.toc-link.active {
  color: var(--color-gold);
  border-left-color: var(--color-gold);
  padding-left: 16px;
}

/* Callouts, Note boxes, and Warnings */
.callout {
  background: var(--color-ink-surface);
  border: 1px solid var(--color-hairline);
  border-left: 4px solid var(--color-hairline);
  border-radius: 8px;
  padding: 20px;
  margin: 24px 0;
  backdrop-filter: blur(8px);
}

.callout-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}

.callout-info {
  border-left-color: var(--color-dusk);
  background: rgba(124, 127, 224, 0.04);
}
.callout-info .callout-title {
  color: var(--color-dusk);
}

.callout-warning {
  border-left-color: var(--color-warning);
  background: rgba(224, 100, 75, 0.04);
}
.callout-warning .callout-title {
  color: var(--color-warning);
}

.callout-note {
  border-left-color: var(--color-gold);
  background: rgba(233, 180, 76, 0.04);
}
.callout-note .callout-title {
  color: var(--color-gold-bright);
}

/* Mobile Table of Contents Floating Drawer */
.mobile-toc-trigger {
  display: none;
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 900;
  background: var(--color-gold-gradient);
  color: var(--color-on-gold);
  border: none;
  padding: 12px 24px;
  border-radius: 30px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  cursor: pointer;
  align-items: center;
  gap: 8px;
}

.mobile-toc-drawer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-ink-raised);
  border-top: 1px solid var(--color-hairline);
  border-top-left-radius: 24px;
  border-top-right-radius: 24px;
  z-index: 1000;
  padding: 24px;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 70vh;
  overflow-y: auto;
}

.mobile-toc-drawer.open {
  transform: translateY(0);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--color-hairline);
  padding-bottom: 12px;
}

.drawer-close {
  background: none;
  border: none;
  color: var(--color-bone-dim);
  font-size: 1.5rem;
  cursor: pointer;
}

.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 990;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* Responsive Overrides */
@media (max-width: 992px) {
  .legal-layout {
    grid-template-columns: 1fr;
  }
  .legal-sidebar {
    display: none;
  }
  .mobile-toc-trigger {
    display: flex;
  }
}